KR20070015572A - Quality of service control for a data transmission in a wireless communication network using configuration messages - Google Patents

Abstract

In UMTS, quality of service attributes, which a user equipment can prescribe for an end-to-end service to be set up in order to meet a specific quality of service, in most cases have to be processed by a central call and admission control function in the network. These quality of service attributes have to be made known to the admission functions of all possible path-segments. Advantageously, according to an exemplary embodiment of the present invention, a quality of service attribute is only transmitted to a selected number of network nodes at the edge of the network. The selected and limited number of network nodes perform a quality of service operation triggered by a receiving station. Advantageously, this may result in a reduction of data traffic and an improved implementation and standardization process. Furthermore, the quality of service attribute may be added to an obligatory configuration message, thus even further reducing the data traffic. ® KIPO & WIPO 2007

Description

QUALITY OF SERVICE CONTROL FOR A DATA TRANSMISSION IN A WIRELESS COMMUNICATION NETWORK USING CONFIGURATION MESSAGES}

The present invention relates to the field of data transmission. In particular, the present invention relates to a method of performing quality control for data transmission from a transmitting station to a receiving station in a network, and a first of service attributes corresponding to the first quality of service operation for transmitting data from a transmitting station to a receiving station in a network. A communication system performing a method of transmitting a first quality, a control of a quality of service for data transmission, and a transmission of a first quality of service attribute corresponding to a first quality of service operation for data transmission from a transmitting station to a receiving station in a network. , Recipients and software programs.

In UMTS, User Equipment (UE) has a Quality of Service Attributes (QOSA) that specifies that end-to-end services are set up to meet the quality of a particular service. This QOSA must be handled by the Central Call and Admission Control Function (CACF) in the network. If they are met in all path-segments, provisions are made to meet them at the affected network nodes.

Standardized networks are usually growing systems, which develop and grow over time. By performing the known quality of service management, any QOSA introduced at a later stage in the standardization process should be made known to all the possible path-segments, the admission control function, ie on all network levels. This approach is expensive both in terms of the standardization process (that is, many workgroups must be involved) and in terms of implementation (that is, many different network node types are affected).

It is an object of the present invention to provide improved quality of service control.

As described in claim 1, according to an embodiment of the present invention, the above object can be solved by a method of performing quality of service control for data transmission from a transmitting station to a receiving station in a network, wherein the network is provided in plurality. Contains network nodes.

 A first quality of service attribute (QOSA) and a first configuration message are transmitted from the receiving station to at least one selected first network node of the plurality of network nodes during a configuration procedure. And a first quality of service operation is executed by one second network node 602 of the plurality of network nodes according to the first quality of service attribute received at the at least one selected first network node. Moreover, the first configuration message includes the first quality of service attribute.

For example, the quality of service attribute may be signaled to the first network node, in which case the first network node may be placed at the edge of the network without being related to other network nodes. In a second step, the first quality of service operation may be performed by the second network node. This second network node may be the first network node or any other network node and the quality of service operation may be based on the transmitted quality of service attribute.

Advantageously, since no further network nodes or admission control functions (in UMTS) are involved, this may allow for simple network implementation and improved quality of service control.

Moreover, since this provides a simple means of merging the quality of service attributes into the quality of service architecture, by adding the quality of service attributes to the configuration message, the minimum network node must be exchanged between the receiving station and the at least one first network node. Must deal with attributes Moreover, this may allow for reduced signal data traffic.

As described in claim 2, according to another embodiment of the invention, the network comprises a plurality of logical channels and data is transmitted as data packets. Moreover, the data packet is transmitted over at least one first logical channel of the plurality of logical channels and the first quality of service attribute includes identification of a second logical channel group of the plurality of logical channels. Moreover, the quality of service attribute is applied to the second logical channel group in the form of the first quality of service operation performed by the second network node.

Advantageously, this may allow quality of service control according to channel flow control for the second logical channel group.

As described in claim 3, in accordance with another embodiment of the present invention, the first quality of service operation is in response to a command sent from the receiving station 601 to at least one of a first network node and a second network node. Is triggered by

Advantageously, this may allow control or triggering by the receiving station on the operation of the quality of service, for example the flow control of the data transmission.

Another embodiment of the invention is described in claim 4, wherein the first quality of service attribute corresponds to a request for flow control of the data packet transmission.

As described in claim 5, in accordance with another exemplary embodiment of the present invention, the at least one first network node is configured to perform the first service before the first quality of service operation is performed by the second network node. The second quality of service operation is performed according to the quality attribute.

Advantageously, this allows the first network node to respond to the first quality of service attribute before the response of the second network node is performed in the form of a first quality of service operation.

As described in claim 6, if the data packet is transmitted over a second logical channel of the second logical channel group, the second quality of service operation by the at least one first network node causes the tag of the data packet to be sent. Contains an assignment. Moreover, the first quality of service operation performed by the second network node includes blocking of the tagged data packet.

Therefore, according to this embodiment of the present invention, the second network node is configured to recognize the data packet, in which case after the trigger command is transmitted from the receiving station to the second network node, the data packet is not transmitted. Should not.

As described in claim 7, in accordance with another embodiment of the present invention, said second quality of service operation performed by said at least one first network node is performed by said first network node from said first network node to said second network mode. A transmission for a second quality of service attribute in accordance with a first quality of service attribute, wherein the second quality of service attribute comprises identification of a second logical channel group of the plurality of logical channels. If the data packet is transmitted on a second logical channel of the second logical channel group, the first quality of service operation is executed by the second network node and includes blocking of the data.

Advantageously, according to this embodiment of the present invention based on the list of logical channels to block, the second network node does not transmit data packets of these logical channels when receiving a STOP command from the receiving station. You may not.

Advantageously, this allows for the efficient implementation of signaling means to add "flow control", a quality of service attribute for the logical channels in the logical channel group, and after the STOP command is received from the receiving station, Force flow control of logical channels.

As described in claim 8, in accordance with another embodiment of the present invention, the at least one first network node sends a second configuration message to the second network node during a second configuration procedure, and the second configuration message. Includes the second quality of service attribute.

Therefore, by adding the second quality of service attribute to the compulsory second configuration message, the signal data traffic can be further reduced.

As described in claim 9, according to another embodiment of the present invention, the method is applied for data transmission through a High Speed Downlink Shared CHannel (HS-DSCH) in a Universal Mobile Telecommunications System (UMTS). do.

This introduces the necessary signaling means to provide flow control for data transmission on the radio bearers mapped to the HS-DSCH without changing the quality of service architecture of UMTS, and the quality of service attribute "flow" to the radio bearers mapped to the HS-DSCH. To add control, we can provide a simple way where only the absolute minimum network nodes are involved.

Another embodiment of the invention is described in claim 10, wherein a method is described for transmitting a first quality of service attribute corresponding to a first quality of service operation for data transmission from a transmitting station to a receiving station in a network, wherein It includes a plurality of network nodes. The method includes transmitting, during a configuration procedure, a first configuration message from a receiving station to at least one selected first network node of the plurality of network nodes, the first configuration message being the plurality of network nodes. The first quality of service attribute corresponding to the first quality of service operation by one of the second network nodes.

Advantageously, this introduces another quality of service attribute without having to change the network's quality of service architecture and with minimal changes to the signaling messages exchanged between the user equipment and the network nodes and between the network nodes, and accordingly Reduced signaling data traffic may allow for improved quality of service control.

As described in claim 11, in accordance with another embodiment of the present invention, during a second configuration procedure, the at least one selected first network node sends a second configuration message to the second network node, and the second The configuration message includes a second quality of service attribute.

Advantageously, this can further reduce signal data traffic.

As described in claims 12 and 13, in accordance with another embodiment of the present invention, there is provided a communication system for performing quality of service control for data transmission from a transmitting station to a receiving station in a network, wherein the network comprises a plurality of network nodes. Include. As described in claim 12, in accordance with an embodiment of the present invention, the receiving station is adapted to transmit a first quality of service attribute to at least one selected first network node of the plurality of network nodes. Moreover, a second network node of one of the plurality of network nodes is adapted to perform a first quality of service operation according to the first quality of service attribute received at the at least one selected first network node. As described in claim 13, in accordance with an embodiment of the present invention, during a configuration procedure, the receiving station is adapted to send a first configuration message to at least one selected first network node of the plurality of network nodes, and The first configuration message includes the first quality of service attribute corresponding to a first quality of service operation by a second network node of one of the plurality of network nodes.

Advantageously, this can provide improved quality of service control in a communication system with minimal changes to signaling messages exchanged between network nodes and between terminals and network nodes.

As described in claim 14, in accordance with another embodiment of the present invention, a receiving station for a communication system is provided for performing quality of service control for data transmission from a transmitting station to a receiving station in a network including a plurality of network nodes. And the receiving station is adapted to transmit a first quality of service attribute to at least one selected first network node of the plurality of network nodes. Moreover, a second network node of one of the plurality of network nodes is adapted to perform a first quality of service operation according to the first quality of service received at a first network node.

Moreover, as described in claim 15, in accordance with another embodiment of the present invention, a receiving station for a communication system is provided, which receives a first configuration message during at least one of the plurality of network nodes during a configuration procedure. Adapted to transmit to a selected first network node of wherein the first configuration message includes the first quality of service attribute corresponding to a first quality of service operation by a second network node of one of the plurality of network nodes. .

Advantageously, this allows for improved quality of service control with reduced signal data traffic.

The invention also relates to a computer program that can be executed, for example, on a processor. Such a computer program may be part of a communication system that performs, for example, quality of service control or data transmission in a network. A computer program according to an embodiment of the invention is described in claims 16 and 17. Preferably, this computer program can be loaded into the working memory of the data processor. Therefore, a data processor is provided to implement the method embodiments of the present invention. The computer program may be stored on a computer readable medium such as a CD-ROM. In addition, the computer program may exist in a network such as the web (WWW) and may be downloaded from these networks into the working memory of the data processor. Such a program can be written in any suitable programming language such as C ++.

 The subject matter of the embodiment of the present invention may be seen in which a quality of service attribute is transmitted only to a radio bearer service in a selected number of network nodes, e. The selected (and limited) number of network nodes perform quality of service operations triggered by the receiving station. Therefore, quality of service attributes are not transmitted on all possible path-segment admission control functions, ie on all network levels. Advantageously, fewer different network node types will be affected, resulting in an improved standardization process since fewer workgroups must be involved, as well as less signal data traffic and simplified implementation. Advantageously, according to an embodiment of the present invention, the quality of service attribute can be added to the compulsory configuration message, thus further reducing the signal data traffic.

The above and other aspects of the invention will become apparent and apparent with reference to the embodiments described hereinafter. Embodiments of the present invention will now be described with reference to the following figures.

1 is a schematic diagram of a simplified UMTS quality of service architecture.

2 is a schematic diagram illustrating a network architecture including network nodes.

3 is a flowchart for establishing end-to-end service between a receiving station and a transmitting station in a UMTS network.

4 is a flow chart depicting the configuration of a receiving station by the UTRAN, performing quality of service control for data download from the transmitting station to the receiving station.

5 shows an embodiment of a method according to the invention.

6 shows an embodiment of a communication system comprising a data processing device according to the invention for carrying out an exemplary embodiment of the method according to the invention.

1 shows a schematic diagram of a simplified UMTS quality of service architecture. In UMTS, the quality of service of an end-to-end service is determined by the "underlying" service provided by the other layers of the network, and the quality of service of this end-to-end service originates from functional groups at other nodes of the network. Can be considered. The network also provides end-to-end services between mobile terminals, such as mobile phones, smart phones, laptops with UMTS data cards, and the like, which are reachable through the network, in which case the endpoint is connected to the network. It can be a terminal, a fixed terminal, or even a server.

"TS23.107 3rd Generation Partnership Project; Technical Specification Group Services and System Aspects; Concepts and Architecture of Quality of Service (QoS)", which is incorporated herein by reference. Depending on the quality of service architecture defined in), the end-to-end services reflected here by reference,

1. UMTS bearer service between a mobile station (MT) and a core network (CN) gateway;

1.1. A radio access bearer service between core network edge nodes connected to a UMTS Terrestrial Radio Access Network (UTRAN) via a mobile terminal and an Iu interface (core network Iu edge node);

1.2. A core network bearer service between a core network lu edge node and a core network gateway;

1.2.1 radio bearer service between mobile terminal and UTRAN;

1.2.2 Iu bearer service between UTRAN and core network Iu edge nodes;

1.2.3 backbone bearer service between core network lu edge node and core network gateway;

1.2.3.1 UTRA FDD / TDD service between mobile terminal and UTRAN;

1.2.3.2 Based on physical bearer service between UTRAN and core network Iu edge node.

According to FIG. 1, the UMTS quality of service architecture distinguishes between a terminal device and a mobile terminal. It is the terminal equipment (TE) that can access the service through the mobile terminal to communicate with any other terminal device.

From a network node point of view, other services needed by the end-to-end service may be described in more detail later from the network node architecture of the network providing such end-to-end service in FIG. 2. In FIG. 2, a user equipment UE represents a mobile terminal and a terminal device together. Figure 2 shows a network architecture for the case of packet switched service. Similar models apply to circuit switched services.

The network described in FIG. 2 includes a plurality of radio cells 201, 202, 203, 204, 205, 206 including a UE 211 and different Node Bs (connecting the UTRAN 207 to a radio cell), RNC, SGSN and GGSN. Contains network nodes. Node B, which is part of UTRAN, and the RNC are connected via an Iub interface. RCN and SGSN (which CN 208 connects UTRAN) are connected via an Iu-ps interface. SGSN and GGSN, which are part of CN 208, are connected via a Gn / Gp interface. Moreover, the GGSN is connected to an external network 209 via a Gi interface, which may be connected to a server or transmission station 210.

The UMTS bearer service is placed between the Gateway GPRS Support Node (GGSN) and the user equipment (UE), the radio access bearer service is placed between the SGSN and the user equipment, and the radio bearer service is a radio controller. ) And the user device. The radio bearer service is then mapped to UTRA FDD / TDD (Frequency Division Duplex / Time Division Duplex) provided by the air interface between Node B and the user equipment (see FIG. 1).

The quality of service (QOS) of the end-to-end (eg between UE and server) service is determined by the QOS of the service, which establishes the end-to-end service. For example, if the basic service can verify that the delay on the corresponding segment of the path through the network is not necessarily added beyond 200 ms, the end-to-end delay may be only about 200 ms. Similarly, for example, if a segment of the path can provide a sufficiently low loss probability, then a probability of packet loss of 0.1% over the entire path may only be guaranteed.

When requesting end-to-end service, the user device intends a specific QOS and delivers a QOS attribute corresponding to the network. The admission control function of the network must check whether the requested QOS can be guaranteed for every segment of the path used by the end-to-end service.

Thus, in this model, the QOS is managed by a unique control entity and collects from different path-segment admission control functions whether the requested QOS can be guaranteed or not. This model implies that the QOS parameter is implicitly known to the central control entity and the entity passes this QOS parameter to the admission control function of the affected path-segment to check whether the requested QOS parameter can be met. Assume

A standardized network is usually a growing system, which develops and grows over time. With the above model of QOS management, any QOS attributes to be introduced later in the standardization process must be known to the admission control function of all possible path-segments, ie on all network levels. This approach is expensive because of both the standardization process (ie, multiple workgroups must be involved) and implementation (multiple different network node types are affected).

In some cases, however, at least if the QOS attribute refers to a network node, for example a radio bearer service at the edge of the network or at the edge of the network, this costly approach can be avoided, and this radio bearer service is HS-. It will be described later based on the quality of service "flow control" on the High Speed Downlink Shared CHannel (DSCH).

The user equipment may be configured to receive data on the downlink via the HS-DSCH, which provides a higher data rate than the dedicated channel (DCH). The HS-DSCH allows for peak data rates in the range of 10 Mbps, while the peak data rates on the DCH cannot exceed 2 Mbps, but are usually slower. In general, the HS-DSCH is used for packet data transmission, for example streaming data. Packet data transmission is controlled and scheduled by the SRNC in the case of DCH, while scheduling data transmission for the HS-DSCH becomes Node B.

Scheduling of data transmissions must naturally take into account the current buffer status on the receiving end, i.e. the current buffer status of the user equipment, in order to avoid transmitting data packets. In this case, the data packet can no longer be stored on the user device and must be discarded. In this case, valuable radio resources are wasted. The SRNC implements a radio link control protocol that implements a retransmission protocol based on a window mechanism that allows the sending entity to send a given PDU as many as its window size without waiting for an acknowledgment (where a sending entity needs to wait for an acknowledgment). Is allowed to transmit an equal number of PDUs (Packet Data Units) without the use of the same), this windowing mechanism can be used for flow control. Thus, if there is insufficient memory, the stream of packets can be interrupted by a message sent from the receiving side (here, the user device).

However, for the HS-DSCH, due to the different locations of the scheduling functions, as well as the higher data rates available on the HS-DSCH, this RLC-based flow control is more inactive, thus completely (at least) wasting downlink resources. You can't avoid it. However, flow control may be introduced based on a specific uplink stop (STOP) command rather than a window based flow control mechanism. That is, as soon as the user device finds that there is not enough memory to store a packet received over a logical channel mapped to the HS-DSCH, the user device sends this STOP command. This stop command is received by Node B and is interpreted to mean that no more packets should be sent on the HS-HSCH over this logical channel for a predefined time.

The problem is that the quality of service architecture uses these additional QOS attributes, "flow control and HS-DSCH" in such a way that the minimum network node must deal with these quality of service attributes to give the user the choice to request end-to-end service. Find a simple way to include it. At this time, this end-to-end service uses the HS-DSCH as the flow control on the air interface. As a result, standardization efforts are minimized.

According to the present invention, a simple means is provided for integrating a quality of service attribute into a quality of service architecture such that a minimum network node must handle quality of service attributes. For example, this technique can be applied if there is a configuration message exchanged between the user equipment and the network node, in which case the network node should be informed of each quality of service attribute.

According to the invention, the configuration message may be a message that the network node sends to the user device for allocating network resources, for example, a channelization code or a scrambling code, wherein the transmission of the configuration message is another response of the user device in response. Send a configuration message. This further configuration message allows the user device to confirm that it configures itself in such a way that the allocated network resources can be used for data transmission between the user device and the network. For example, in UMTS, the RNC sends a RADIO BEARER RECONFIGURATION message to the UE (user equipment) to assign a radio bearer for data transmission or to change an already established radio bearer for data transmission. . Accordingly, the UE responds to the radio bearer reconfiguration message with a RADIO BEARER RECONFIGURATION COMPLETE message. This radio bearer reconfiguration complete message indicates that the UE has configured itself in such a manner that data is transmitted over a new or changed radio bearer.

The configuration message must be distinguished from the call control message. This call control message may send the UE to the network to request service (e.g. voice call), or the UE may be another terminal device (or other UE) elsewhere in the network, for example elsewhere in the network. And a request to accept an incoming service request, which is a voice call initiated. The most recent call control message used to request a service usually contains a quality of service attribute.

This call control message involves the transmission of a configuration message, and resources are allocated to this configuration message, which resources are needed to support the service.

According to an embodiment of the invention, this problem can be solved as outlined in FIG. 3 is a flowchart of a method embodiment according to the present invention for constructing an "HS-DSCH with flow control".

The method begins at step S30, in which the user decides whether he wants to download streaming data, such as music, for example to a Hi-Fi system or a walkman. The hi-fi system or walkman is of course limited if it has a Bluetooth interface. The data is only available through the UMTS service provider. Thus, streaming data downloads are made by the user's UMTS-UE (user device), and apart from the UMTS air interface, the UMTS-UE has a Bluetooth interface and thus can deliver streaming data to the hi-fi system. To speed up the download, the user attempts to establish a downlink connection to the UMTS network so that the download data is transmitted over the HS-DSCH. Since the fee is based on the amount of data transmitted over the air interface, the user wants to apply flow control to avoid paying for the packet. However, because the user device suffers from a shortage of memory due to a temporary bottleneck on the Bluetooth interface, this packet is sent over the air interface but should be discarded at the user device.

As a result, in order to initiate a download, the user can first configure his user device in such a way that the data to be downloaded from the server is passed to the destination device (e.g., a hi-fi system), for example a Bluetooth connection from the user device. By "mounting" to a drive on the destination device reachable via means that the data can be copied to the destination device later. This process is performed in step S31.

Moreover, the user must establish a connection to a music server reachable through the UMTS network. Here, the user must find the desired music and select the "High Speed" option for this connection. Thus, data is downloaded via the HS-DSCH. Moreover, the user can select the option "with flow control". Therefore, the optional "HS-DSCH with flow control" is stored in the RRC layer (Radio Resource Control layer) of the user equipment. The RRC layer is responsible for responding to so-called RRC messages, whereby the UTRAN configures the user equipment to receive data over the HS-DSCH, for example with its own RRC message. This configuration step may be accomplished by a local control primitive, and by the local control primitive, the RRC layer may be configured by a higher layer (step S32).

The connection setup consists of several steps. That is, the user equipment establishes a so-called RRC connection to the next reachable radio network controller, which becomes a SRNC (Serving RNC) (step S33). In step S34, the user equipment sends a CM_SERV_REQ message to the network to request end-to-end service to the server by RRC connection. Thus, in step S35, the network initiates an authentication process based on a known " try-response " scheme for the user device. That is, the network transmits a random number, from which the user device computes the numeric RES-using this particular user device and the private key known only to the network-and sends the RES to the network, if received. If this is equal to the expected value RES, the network assumes that the user device is authenticated, and the network can calculate the expected value RES from a random number and a secret key.

After successful authentication, the network starts encryption and integrity security between the user device and the SRNC (step S36). In step S37, the user equipment sends a setup message to the network to set up the end-to-end service. In step S38, the network responds with a CALL_PROCEEDING message, whereby the end-to-end service is established.

Up to this point, the user equipment can only transmit and receive data via the common transport channel provided by the air interface, which can be configured without any configuration procedure executed by UTRAN, i.e. from the SRNC. It is available without sending it. In step S39, the download is started.

However, at least as soon as download begins, the large amount of data that must be delivered to the user device via the air interface allows the UTRAN to configure the user device to receive data via the HS-DSCH. This configuration is made, for example, by an RRC message called RADIO BEARER RECONFIGURATION, and the SRNC sends this RRC message to the user device in step S40 of FIG.

4 shows a flowchart depicting the configuration of the receiving station by the UTRAN, performing quality of service control for data download from the transmitting station to the receiving station. After transmitting the RADIO BEARER RECONFIGURATION message in step S40, the user equipment is configured to receive the HS-DSCH (step S41). For example, the user equipment may have a scrambling code and a channelization code to be used for transmission on the HS-DSCH, as well as an RLC setting necessary for data transmission on the HS-DSCH, a logical channel and a radio bearer used for transmission of data. You may be notified about the identifier.

As soon as the RRC layer receives the RADIO BEARER RECONFIGURATION message, the required local configuration action is taken. That is, a physical layer, a medium access control (MAC) layer, and an RLC layer are configured. For the configuration of the RLC layer, this means that the RLC entity of the user device that will be responsible for processing the download data received on the logical channel configured for local configuration behavior has a maximum share of the receive buffer in the Packet Data Unit. As soon as a certain maximum value that causes loss is reached, the physical layer is informed to point to the physical layer to issue a STOP command to the transmitting Node B.

The UTRAN waits for a response to the configuration message from the user equipment, which in this case becomes a RADIO BEARER RECONFIGURATION COMPLETE message, which carries data relating to security, for example. For the purpose of providing the network node with the quality of service attribute "HS-DSCH with flow control", according to an embodiment of the invention, this message is supplemented by a list of logical channels, for which flow control If necessary, logical channels carrying packets of the data stream that the user equipment must be able to interrupt should be applied. In step S42, a RADIO BEARER RECONFIGURATION COMPLETE message is sent to the SRNC, but the information related to the quality of service "flow control" stops to provide actual fast flow control since this information is the node. It must be known at Node B, the very node that responds to the STOP) command. Moreover, whether flow control is applied or not anyway, it may be necessary for the SRNC to configure just that Node B to send data to the user equipment via the HS-DSCH. Therefore, to reconfigure the current radio link, the 3GPP standard specifies that a message is sent from the SRNC to the Node B, for example via a DRIFT RNC. This message includes: "TS25.433 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; UTRAN Iub Interface NBAP Signaling" and "TS25.423 3rd Generation Partnership Project; Technical Specification Group Radio Access Network" technical specification group radio access network (UTRAN Iub interface NBAP signaling), referred to as a Radio Link Bearer Reconfiguration (RADIO BEARER RECONFIGURATION PREPARE) message, the documents of which are incorporated herein by reference.

The transmission of this RADIO LINK RECONFIGURATION PREPARE message may be performed in step 43. This message is supplemented by a list of logical channels of the corresponding radio bearer so that Node B notices the QOS attribute "HS-DSCH with Flow Control", in which case Node B is STOP by the user equipment. If it receives a command it must abort. Therefore, Node B must read the MAC header of the received PDU, in which case the MAC header includes a logical channel identifier (step S44). In step S45, the Node B receives a STOP command from the user device. Then, based on the list of logical channels to stop, the Node B can avoid transmitting PDUs of this logical channel via the HS-DSCH (step S46).

Therefore, further data packet transmissions are not performed over logical channels on the list without having to be concerned with admission control functions in the network, which simplifies network implementation.

Another implementation is described in steps S47-S50, where Node B is made aware of PDUs that should not be sent after a STOP command is received. This is done as follows. That is, in step S47, the SRNC tags the PDUs of each logical channel. In this case, Node B should be able to abort the PDU before sending it to Node B. In step S48, the SRNC sends the tagged PDU to the Node B. Then, for example, because the user device finds that there is not enough memory to store a packet received over a logical channel mapped to the HS-DSCH, the user device sends a STOP command to Node B in step S49. . Any PDU with this tag received by Node B becomes a PDU that Node B does not consider for further transmission over the HS-DSCH after a STOP command is received from the user equipment. Therefore, transmission of the tagged PDU is blocked at step S50.

As can be seen from the above, the signal approach does not only mean the "absolute" edge of the network. As long as the user device exchanges messages with a particular network node, the quality of service attribute can easily be added for the path-segment, which is terminated at this network node.

5 shows another schematic illustration of a method embodiment according to the invention. The receiving station or the user equipment RS / UE transmits a first configuration message to the first network node N1 during the configuration procedure. This first configuration message contains a first quality of service attribute (1.QOSA). After receiving the first quality attribute (along with the first configuration message), the first network node N1 performs a second quality of service operation 2.QOSO based on the received first quality of service attribute. If the data packet is sent on the first logical channel of the second logical channel group identified based on the first quality of service attribute, this second quality of service operation may include a tag of the data packet. In this case, the data packet is delivered through one of the listed second logical channels, so when the data packet is tagged, the second quality of service attribute 2.QOSA is transmitted from the first network node to the second network node N2. Is sent to. This second quality of service attribute may include a request for a second network node for an “HS-DSCH with flow control”. As soon as the second network node receives a STOP command from the receiving station, the second network node performs a first quality of service operation (1.QOSO). This first quality of service operation performed by the second network node includes blocking of tagged data packets.

Moreover, according to another embodiment of the present invention, the second quality of service operation performed by the at least one first network node may be based on the second quality of service attribute based on the first quality of service attribute from the first network node to the second network node. Transmission of a quality attribute, wherein the second quality of service attribute comprises identification of a second logical channel group of the plurality of logical channels. After receiving a STOP command from the user equipment or receiving station, the first quality of service operation is performed by the second network node. If the data packet is sent on the logical channel identified by the list of second logical channels, this first quality of service operation includes blocking of the data packet. Advantageously, during the second configuration procedure, the second quality of service attribute is added to the second configuration message sent from the at least one first network node to the second network node. By sending the first quality of service attribute or the second quality of service attribute as part of the first or second configuration message (in this case, the configuration message must be sent in either case), signal data traffic, in particular uplink data traffic (uplink) data traffic) can be efficiently reduced.

6 illustrates a communication system according to an embodiment of the present invention. The communication system comprises a computer having a data station 609 and a transmitting station 609, which may be a receiving station or user device 601, for example a data server for an audio file, or a mobile terminal. This communication system becomes part of a network, in which case the network comprises a plurality of network nodes, such as a first network node N1; 604 and a second network node N2; 602. The data processor 603 is connected to the second network node 602 via a communication link 608. Moreover, the data processor may be configured to perform quality of service control for data transmission from the transmitting station to the receiving station in the network, or for data transmission in a network comprising network nodes N1; 604 and network nodes N2; 602. It is used to execute a software program for performing transmission of a first quality of service attribute corresponding to the first quality of service operation. The transmission of data packets from the transmitting station 609 to the receiving station 601 may be performed via the communication links 610, 606 and 607. The data packet is first sent to the first network node 604 via the communication link 610 (eg, becomes a wireless communication link) and then to the second network node 602 via the communication link 606. The second network node 602 suspends from the receiving station 601, for example, during the communication link 607, to perform flow control for data transmission via the High Speed Downlink Shared CHannel (HS-DSCH) in UMTS. It can be triggered by the sending of the (STOP) command. The receiving station 601 described in FIG. 6 may be adapted to send a first quality of service attribute to at least one selected first network node 604 of a plurality of network nodes of the network via the communication links 605 and 611.

It should be noted that, according to an embodiment of the present invention, the transmission of the first quality of service attribute may be performed through the second network node 602 (which may of course be the case in UMTS network configuration, for example, The first network node may correspond to the RNC and the second network node may correspond to the Node B). However, in a network having an architecture different from the current UMTS network architecture, the transmission of the first quality of service attribute is also transmitted from the receiving station 601 to at least one selected first network node 604 via the communication link 612. Can be done directly. Moreover, the second network node 602 is adapted to perform the first quality of service operation according to the first quality of service attribute received at the first network node 604.

After receiving the first quality of service attribute from the receiving station 601, the first network node 604 performs a second quality of service operation and transmits the second quality of service attribute to the second network node via the communication link 606. Send to 602. According to a method embodiment of the present invention, this second quality of service attribute (which may advantageously be sent with a second configuration message) comprises the identification of a second logical channel group of the plurality of logical channels within the network. Now, the second logical channel should be blocked after receiving the STOP command from the receiving station 601 at the second network node 602.

When a computer program according to an embodiment of the present invention is executed on the data processor 603, the data processor 603 is adapted to perform an operation according to an exemplary embodiment of the present invention.

However, the second network node 602 may not only be connected to a data processor, but may also be connected to the first network node 604, or to another network node, such as the transmitting station 609, or the receiving station 601, It should be noted that it may be coupled to or include a data processor (not shown in FIG. 6) that performs the operation.

For example, the invention described above may also be applied to the field of wireless communications networks. However, the invention is also applicable to the field of other communication networks, for example fiber optic communication networks.

Advantageously, in accordance with an embodiment of the present invention, the quality of service attributes are transmitted to selected multiple network nodes only at the edge of the network. The selected (and limited) number of network nodes perform quality of service operations triggered by the receiving station. Therefore, quality of service attributes are not transmitted on all possible path-segment admission control functions, ie on all network levels. Advantageously, this in turn results in less data traffic and an improved implementation since fewer other network node types are affected and also results in an improved standardization process since fewer workgroups must be involved. Can be. Advantageously, in accordance with an embodiment of the present invention, a quality of service attribute may be added to the compulsory configuration message, which further reduces data traffic.

The word "comprising" does not exclude the presence of other components or steps other than those listed in a claim, "one" or "single" does not exclude a plurality of configurations, and a single processor or system It should be noted that the functions of many of the means recited in the claims can be met.

It should also be noted that any reference signs in the claims should not be construed as limiting the scope.

As mentioned above, the present invention relates to the field of data transmission, and in particular, the present invention relates to a method of performing quality control for data transmission from a transmitting station to a receiving station in a network, from a transmitting station to a receiving station in a network. Method of transmitting the first quality of service attribute corresponding to the first quality of service operation for data transmission of the data, performing control of the quality of service for data transmission, the first for data transmission from the transmitting station to the receiving station in the network It is available to communication systems, receiving stations, and software programs that perform the transmission of the first quality of service attribute corresponding to a quality of service operation.

Claims (17)

A method of performing quality of service control for data transmission from a transmitting station 609 to a receiving station 601 in a network including a plurality of network nodes 602, 604, A first Quality of Service Attribute (QOSA) and a first Quality of Service attribute (QOSA) and a first to the selected first network node 604 of the plurality of network nodes 602 and 604 from the receiving station 601 during a configuration procedure. 1 sending a configuration message; And Execute a first quality of service operation by one second network node 602 of the plurality of network nodes 602, 604 according to the first quality of service attribute received at the at least one selected first network node 604. Including the steps of: The first configuration message includes the first quality of service attribute. How to perform quality of service controls. The method of claim 1, The network comprises a plurality of logical channels; The data is transmitted in a data packet; The data packet is transmitted on at least one first logical channel of the plurality of logical channels; The first quality of service attribute comprises an identification of a second logical channel group of the plurality of logical channels; And wherein the first quality of service attribute is applied to the second logical channel group in the form of the first quality of service operation executed by the second network node. The method of claim 1, And the first quality of service operation is triggered by a command sent from the receiving station (601) to at least one of a first network node and a second network node. The method of claim 2, And wherein the first quality of service attribute corresponds to a request for flow control of the data packet transmission. The method of claim 2, The at least one first network node 604 performs quality of service control to perform a second quality of service operation according to the first quality of service attribute before the first quality of service operation is performed by the second network node. How to do it. The method of claim 5, If the data packet is sent on a second logical channel of the second logical channel group, the second quality of service operation performed by the at least one first network node (604) includes tagging; And wherein the first quality of service operation executed by the second network node comprises blocking of the tagged data packet. The method of claim 5, The second quality of service operation performed by the at least one first network node 604 is according to the first quality of service attribute from the first network node 604 to the second node network. Includes transmission of an attribute; The second quality of service attribute comprises an identification of a second logical channel group of a plurality of logical channels; If the data packet is transmitted over a second logical channel of the second logical channel group, the first quality of service operation executed by the second network node may be to control quality of service including blocking of the data packet. How to do it. The method of claim 7, wherein The at least one first network node (604) sends a second configuration message to the second network node during a second configuration procedure; And wherein the second configuration message includes the second quality of service attribute. The method of claim 1, The method is a method of performing quality of service control applied for data transmission through a High Speed Downlink Shared CHannel (HS-DSCH) in a Universal Mobile Telecommunications System (UMTS). In a network including a plurality of network nodes 602, 604, data transmission from a transmitting station 609 to a receiving station 601 is executed, and a first quality of service attribute corresponding to the first quality of service operation for the data transmission. As a method of transmitting  During a configuration procedure, sending a first configuration message from a receiving station 601 to at least one selected first network node 604 of the plurality of network nodes 602, 604, wherein The first configuration message transmits a first quality of service attribute including the first quality of service attribute corresponding to a first quality of service operation by a second network node 602 of one of the plurality of network nodes 602, 604. How to. The method of claim 10, During a second configuration procedure, the at least one selected first network node 604 sends a second configuration message to the second network node; And wherein the second configuration message sends a first quality of service attribute comprising a second quality of service attribute. A communication system for performing quality of service control for data transmission from a transmitting station 609 to a receiving station 601 in a network including a plurality of network nodes 602, 604, The receiving station (601) is adapted to transmit a first quality of service attribute to at least one selected first network node (604) of the plurality of network nodes; One second network node 602 of the plurality of network nodes 602, 604 is adapted to perform a first quality of service operation according to the first quality of service received at the at least one selected first network node 604. System for performing controlled quality of service. In a network including a plurality of network nodes 602, 604, data transmission from a transmitting station 609 to a receiving station 601 is executed, and a first quality of service attribute corresponding to the first quality of service operation for the data transmission. A communication system for transmitting  During the configuration procedure, the receiving station 601 is adapted to send a first configuration message to at least one selected first network node 604 of the plurality of network nodes 602, 604; The first configuration message transmits a first quality of service attribute including the first quality of service attribute corresponding to a first quality of service operation by a second network node 602 of one of the plurality of network nodes 602, 604. Communication system. A receiving station 601 for a communication system for performing quality of service control for data transmission from a transmitting station 609 to a receiving station 601 in a network including a plurality of network nodes 602, 604, The receiving station (601) is adapted to send a first quality of service attribute to at least one selected first network node (604) of the plurality of network nodes (602, 604); One second network node 602 of the plurality of network nodes 602, 604 is adapted to perform a quality of service control adapted to perform a first quality of service operation according to the first quality of service received at the first network node 604. Receiving station for performing communication system. In a network including a plurality of network nodes 602, 604, data transmission from a transmitting station 609 to a receiving station 601 is executed, and a first quality of service attribute corresponding to the first quality of service operation for the data transmission. As a receiving station (601) that transmits  During the configuration procedure, the receiving station 601 is adapted to send a first configuration message to at least one selected first network node 604 of the plurality of network nodes 602, 604; The first configuration message transmits a first quality of service attribute including the first quality of service attribute corresponding to a first quality of service operation by a second network node 602 of one of the plurality of network nodes 602, 604. Recipient. A software program for performing quality of service control for data transmission from a transmitting station 609 to a receiving station 601 in a network including a plurality of network nodes 602, 604, The computer program causes the data processor to perform subsequent operations when the computer program is executed on a data processor; The subsequent operation is performed by the plurality of network nodes 602 and 604 according to a first quality of service attribute transmitted from the receiving station 601 to the at least one selected first network node 604 of the plurality of network nodes 602 and 604. Performing a first quality of service operation associated with one second network node (602). In a network including a plurality of network nodes 602, 604, data transmission from a transmitting station 609 to a receiving station 601 is executed, and a first quality of service attribute corresponding to the first quality of service operation for the data transmission. A software program for performing the transfer of The computer program causes the data processor to perform subsequent operations when the computer program is executed on a data processor; The subsequent operation is to perform transmission of a first configuration message from the receiving station (601) to the at least one selected first network node (604) of the plurality of network nodes (602,604) during a configuration procedure; The first configuration message transmits a first quality of service attribute including the first quality of service attribute corresponding to a first quality of service operation by a second network node 602 of one of the plurality of network nodes 602, 604. Software program.

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